Reinforced concrete is a common material in infrastructure, commercial, and domestic construction. We made PRO SDS max-4 Hammer Drill Bits to help construction workers drill in it. The drill bits have a hardy 4-cutter design that prevents them from jamming or breaking when you hit rebar. Packaging content Number of drill bits: 1 pc(s) Features Proper use: Rotary hammer Drill bit diameter: 3.2 cm Length: 520 mm Suitable for materials: Brick, Concrete Shank shape: SDS MaxMostrar maisMostrar menos